Anthony Pettis realized a childhood dream securing the UFC ‘ightweight title with a first-round submission victory over Benson Henderson at UFC 164 in Milwaukee on Saturday night, but it could come at a cost after the new champ felt his knee pop in the opening moments of the fight.

“This is actually my other knee,” Pettis said on the UFC post-fight show on Fox Sports 2. “My right knee was my ACL tear, but I went to check a kick early in the first round and it hit me right in the middle of a groove and I felt my knee just pop.

“I felt it go back and forth, so I don’t know what happened yet. Hopefully it’s not something big and just a bruise, but I will wait until I get my MRI done.”

Despite recent injuries that forced the 26-year-old out of a fight with UFC featherweight champ Jose Aldo, Pettis was 100-percent fit coming into Saturday night’s fight and is happy to revisit the idea of fighting Aldo. He’s even happy to drop down to featherweight to make it happen.

“I was 100-percent healthy, but I didn’t have a full camp. I only had a six week camp,” Pettis revealed. “I went from training 100 percent, took four weeks off, I was depressed. I didn’t know whether I would ever be champ.”

But now that he is the UFC lightweight champion, Anthony Pettis set his sights on a higher goal.

“I’m here to prove I’m the best in the world. If Aldo wants to fight me, let’s make it happen.”

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